The Excalibur Bi-Retrograde Calendar by Roger Dubuis

This year, Roger Dubuis celebrates its 30th anniversary, and for the occasion, the company pays tribute to its co-founder’s favourite complication: the bi-retrograde display.

This function, previously featured in the Excalibur Grande Complication alongside a dozen other highly complex mechanisms, takes centre stage once again. The Maison has also introduced a less complicated, more classic edition to further honour the bi-retrograde display.

Also referred to as “the ecliptic counters” by the Maison a nod to their elliptical shape and distinctive role in indicating the months and date the design showcases a symmetrical dial layout. Enhanced by refined detailing, it pays homage to the Maison’s early creations from 1996.

Armin Strom

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Armin Strom

Armin Strom is a Swiss watch brand known for its innovative and highly precise timepieces. The company was founded in 1967 by Armin Strom, a master watchmaker with a passion for creating exquisite watches that embody the perfect balance of form and function.

Armin Strom watches are highly sought after by collectors and enthusiasts alike, and the company has gained a reputation for its technical prowess and attention to detail. The brand's signature feature is the skeletonization of the movement, which allows the wearer to see the intricate workings of the watch in action.

Armin Strom's watches are made with the finest materials, including precious metals, sapphire crystal, and top-quality leather and rubber straps. The company also produces its own in-house movements, which are designed, manufactured, and assembled entirely in-house.

In addition to its classic timepieces, Armin Strom has also created a range of innovative watches that incorporate cutting-edge technology, such as the Mirrored Force Resonance, which uses a unique resonance system to improve accuracy, and the Gravity Equal Force, which ensures constant energy transmission to the escapement.